Operation CHARM: Car repair manuals for everyone.
Home >> Mercedes Benz >> 2003 >> ML 320 (163.154) V6-3.2L (112.942) >> Repair and Diagnosis >> Powertrain Management >> Transmission Control Systems >> Relays and Modules - Transmission and Drivetrain >> Relays and Modules - Transfer Case >> Control Module >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Control Module: Service and Repair



Removing, Installing Transfer Case Control Module

Part 1:






Part 2:






Part 3:






1 Remove cover on shift lever
2 Remove center console
3 Remove insulating mat (5)
4 Remove air duct (6) for rear footwell
5 Remove transfer case control unit (N78)

NOTE: Installation: Check transfer case control unit for communication with HHT.

6 Reinstall in opposite order.

pro multis · About Operation CHARM